Orcish Languages
The languages of the orcs are almost identical across all three continents, much to the surprise (and consternation) of the few scholars who study the language.
Dun'ka
Dun'kol (or "Great Tongue") is the secret language spoken only by orcish shamans and great leaders across the world. No scholar outside these orcish circles has ever recorded the language and even its existence is only rumored. Of the Orcish Languages, it is the most unique and is generally unintelligible to orcish speakers.
Gorosh'kol
Gorosh'kol is spoken by the orcs of central Gallorea, including Vagorosh.
Kagra'kol
Kagra'kol is spoken by the orcs of eastern Gallorea, including Vor Kagran.
Midal'kol
Midal'kol is spoken by the orcs of Duria, including Vor Midal and the Orcish Wastes.
Tan'kol
Tan'kol is spoken by the orcs of northwestern Aurea, including the Plains of Tazgrat, the Orcish Moorlands and the Ride of Tongwr. Those few scholars who have studied the language suggest some influence from the now-extinct Tangar